Inventories (Tables)

3 Months Ended

Mar. 31, 2012

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	March 31, 2012		December 31, 2011
	(Dollars in millions)
Materials and supplies	$	134.6	$	124.9
Raw coal	125.1		95.0
Saleable coal	255.2		226.4
Total	$	514.9	$	446.3